Updated color block list for filters that will stop you seeing posts from any new/current users without blocking/muting each of those users.

Click your avatar.
Click edit profile.
Click "filters" on the left menu.
Create one filter for EACH of these.
Click "public timelines"
Unclick the option to block whole words:

[hash]wordle
🟨
🟥
🟩
⬛
🟪
⬜
🕚
1️⃣
2️⃣
0️⃣
9️⃣

Click the "Add new filter" bar to save.